Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 300 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/dp/dp_debug.c b/drivers/gpu/drm/msm/dp/dp_debug.c
new file mode 100644
index 000000000..5e35033ba
--- /dev/null
+++ b/drivers/gpu/drm/msm/dp/dp_debug.c
@@ -0,0 +1,300 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
+ */
+
+#define pr_fmt(fmt)"[drm-dp] %s: " fmt, __func__
+
+#include <linux/debugfs.h>
+#include <drm/drm_connector.h>
+#include <drm/drm_file.h>
+
+#include "dp_parser.h"
+#include "dp_catalog.h"
+#include "dp_aux.h"
+#include "dp_ctrl.h"
+#include "dp_debug.h"
+#include "dp_display.h"
+
+#define DEBUG_NAME "msm_dp"
+
+struct dp_debug_private {
+	struct dentry *root;
+
+	struct dp_usbpd *usbpd;
+	struct dp_link *link;
+	struct dp_panel *panel;
+	struct drm_connector *connector;
+	struct device *dev;
+	struct drm_device *drm_dev;
+
+	struct dp_debug dp_debug;
+};
+
+static int dp_debug_show(struct seq_file *seq, void *p)
+{
+	struct dp_debug_private *debug = seq->private;
+	u64 lclk = 0;
+	u32 link_params_rate;
+	const struct drm_display_mode *drm_mode;
+
+	if (!debug)
+		return -ENODEV;
+
+	drm_mode = &debug->panel->dp_mode.drm_mode;
+
+	seq_printf(seq, "\tname = %s\n", DEBUG_NAME);
+	seq_printf(seq, "\tdrm_dp_link\n\t\trate = %u\n",
+			debug->panel->link_info.rate);
+	seq_printf(seq, "\t\tnum_lanes = %u\n",
+			debug->panel->link_info.num_lanes);
+	seq_printf(seq, "\t\tcapabilities = %lu\n",
+			debug->panel->link_info.capabilities);
+	seq_printf(seq, "\tdp_panel_info:\n\t\tactive = %dx%d\n",
+			drm_mode->hdisplay,
+			drm_mode->vdisplay);
+	seq_printf(seq, "\t\tback_porch = %dx%d\n",
+			drm_mode->htotal - drm_mode->hsync_end,
+			drm_mode->vtotal - drm_mode->vsync_end);
+	seq_printf(seq, "\t\tfront_porch = %dx%d\n",
+			drm_mode->hsync_start - drm_mode->hdisplay,
+			drm_mode->vsync_start - drm_mode->vdisplay);
+	seq_printf(seq, "\t\tsync_width = %dx%d\n",
+			drm_mode->hsync_end - drm_mode->hsync_start,
+			drm_mode->vsync_end - drm_mode->vsync_start);
+	seq_printf(seq, "\t\tactive_low = %dx%d\n",
+			debug->panel->dp_mode.h_active_low,
+			debug->panel->dp_mode.v_active_low);
+	seq_printf(seq, "\t\th_skew = %d\n",
+			drm_mode->hskew);
+	seq_printf(seq, "\t\trefresh rate = %d\n",
+			drm_mode_vrefresh(drm_mode));
+	seq_printf(seq, "\t\tpixel clock khz = %d\n",
+			drm_mode->clock);
+	seq_printf(seq, "\t\tbpp = %d\n",
+			debug->panel->dp_mode.bpp);
+
+	/* Link Information */
+	seq_printf(seq, "\tdp_link:\n\t\ttest_requested = %d\n",
+			debug->link->sink_request);
+	seq_printf(seq, "\t\tnum_lanes = %d\n",
+			debug->link->link_params.num_lanes);
+	link_params_rate = debug->link->link_params.rate;
+	seq_printf(seq, "\t\tbw_code = %d\n",
+			drm_dp_link_rate_to_bw_code(link_params_rate));
+	lclk = debug->link->link_params.rate * 1000;
+	seq_printf(seq, "\t\tlclk = %lld\n", lclk);
+	seq_printf(seq, "\t\tv_level = %d\n",
+			debug->link->phy_params.v_level);
+	seq_printf(seq, "\t\tp_level = %d\n",
+			debug->link->phy_params.p_level);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(dp_debug);
+
+static int dp_test_data_show(struct seq_file *m, void *data)
+{
+	const struct dp_debug_private *debug = m->private;
+	const struct drm_connector *connector = debug->connector;
+	u32 bpc;
+
+	if (connector->status == connector_status_connected) {
+		bpc = debug->link->test_video.test_bit_depth;
+		seq_printf(m, "hdisplay: %d\n",
+				debug->link->test_video.test_h_width);
+		seq_printf(m, "vdisplay: %d\n",
+				debug->link->test_video.test_v_height);
+		seq_printf(m, "bpc: %u\n",
+				dp_link_bit_depth_to_bpc(bpc));
+	} else {
+		seq_puts(m, "0");
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(dp_test_data);
+
+static int dp_test_type_show(struct seq_file *m, void *data)
+{
+	const struct dp_debug_private *debug = m->private;
+	const struct drm_connector *connector = debug->connector;
+
+	if (connector->status == connector_status_connected)
+		seq_printf(m, "%02x", DP_TEST_LINK_VIDEO_PATTERN);
+	else
+		seq_puts(m, "0");
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(dp_test_type);
+
+static ssize_t dp_test_active_write(struct file *file,
+		const char __user *ubuf,
+		size_t len, loff_t *offp)
+{
+	char *input_buffer;
+	int status = 0;
+	const struct dp_debug_private *debug;
+	const struct drm_connector *connector;
+	int val = 0;
+
+	debug = ((struct seq_file *)file->private_data)->private;
+	connector = debug->connector;
+
+	if (len == 0)
+		return 0;
+
+	input_buffer = memdup_user_nul(ubuf, len);
+	if (IS_ERR(input_buffer))
+		return PTR_ERR(input_buffer);
+
+	DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
+
+	if (connector->status == connector_status_connected) {
+		status = kstrtoint(input_buffer, 10, &val);
+		if (status < 0) {
+			kfree(input_buffer);
+			return status;
+		}
+		DRM_DEBUG_DRIVER("Got %d for test active\n", val);
+		/* To prevent erroneous activation of the compliance
+		 * testing code, only accept an actual value of 1 here
+		 */
+		if (val == 1)
+			debug->panel->video_test = true;
+		else
+			debug->panel->video_test = false;
+	}
+	kfree(input_buffer);
+
+	*offp += len;
+	return len;
+}
+
+static int dp_test_active_show(struct seq_file *m, void *data)
+{
+	struct dp_debug_private *debug = m->private;
+	struct drm_connector *connector = debug->connector;
+
+	if (connector->status == connector_status_connected) {
+		if (debug->panel->video_test)
+			seq_puts(m, "1");
+		else
+			seq_puts(m, "0");
+	} else {
+		seq_puts(m, "0");
+	}
+
+	return 0;
+}
+
+static int dp_test_active_open(struct inode *inode,
+		struct file *file)
+{
+	return single_open(file, dp_test_active_show,
+			inode->i_private);
+}
+
+static const struct file_operations test_active_fops = {
+	.owner = THIS_MODULE,
+	.open = dp_test_active_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.write = dp_test_active_write
+};
+
+static void dp_debug_init(struct dp_debug *dp_debug, struct drm_minor *minor)
+{
+	char path[64];
+	struct dp_debug_private *debug = container_of(dp_debug,
+			struct dp_debug_private, dp_debug);
+
+	snprintf(path, sizeof(path), "msm_dp-%s", debug->connector->name);
+
+	debug->root = debugfs_create_dir(path, minor->debugfs_root);
+
+	debugfs_create_file("dp_debug", 0444, debug->root,
+			debug, &dp_debug_fops);
+
+	debugfs_create_file("msm_dp_test_active", 0444,
+			debug->root,
+			debug, &test_active_fops);
+
+	debugfs_create_file("msm_dp_test_data", 0444,
+			debug->root,
+			debug, &dp_test_data_fops);
+
+	debugfs_create_file("msm_dp_test_type", 0444,
+			debug->root,
+			debug, &dp_test_type_fops);
+}
+
+struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
+		struct dp_usbpd *usbpd, struct dp_link *link,
+		struct drm_connector *connector, struct drm_minor *minor)
+{
+	struct dp_debug_private *debug;
+	struct dp_debug *dp_debug;
+	int rc;
+
+	if (!dev || !panel || !usbpd || !link) {
+		DRM_ERROR("invalid input\n");
+		rc = -EINVAL;
+		goto error;
+	}
+
+	debug = devm_kzalloc(dev, sizeof(*debug), GFP_KERNEL);
+	if (!debug) {
+		rc = -ENOMEM;
+		goto error;
+	}
+
+	debug->dp_debug.debug_en = false;
+	debug->usbpd = usbpd;
+	debug->link = link;
+	debug->panel = panel;
+	debug->dev = dev;
+	debug->drm_dev = minor->dev;
+	debug->connector = connector;
+
+	dp_debug = &debug->dp_debug;
+	dp_debug->vdisplay = 0;
+	dp_debug->hdisplay = 0;
+	dp_debug->vrefresh = 0;
+
+	dp_debug_init(dp_debug, minor);
+
+	return dp_debug;
+ error:
+	return ERR_PTR(rc);
+}
+
+static int dp_debug_deinit(struct dp_debug *dp_debug)
+{
+	struct dp_debug_private *debug;
+
+	if (!dp_debug)
+		return -EINVAL;
+
+	debug = container_of(dp_debug, struct dp_debug_private, dp_debug);
+
+	debugfs_remove_recursive(debug->root);
+
+	return 0;
+}
+
+void dp_debug_put(struct dp_debug *dp_debug)
+{
+	struct dp_debug_private *debug;
+
+	if (!dp_debug)
+		return;
+
+	debug = container_of(dp_debug, struct dp_debug_private, dp_debug);
+
+	dp_debug_deinit(dp_debug);
+
+	devm_kfree(debug->dev, debug);
+}